Well, do we have a national interest in opposing the taliban?
Gordon Brown seems to think so but the British government has not been able to offer a consistant clear and reasoned argument as to why Britain should be fighting in Afghanistan.
If Gordon Brown and his team keep changing the goalposts, (one week it's nation building, another its combatting drugs and then its onto combatting terrorism, basically whatever will sell it best at that particular moment in time) is it any wonder that the rest of us begin to question why we are there or "can grasp the significance of what is being done and needs to be achieved"?
The lack of resources for the British Army (always a common compliant) also undermines the British government's position. If Afghanistan is as important as they keep telling us then why does the government do everythign it can not to spend money on equipment?
More to the point why have 5 senior British commanders, all having served in Afghanistan, resigned in protest over the British government's failure to honour its commitment to British troops with regard to the supply of men and equipment?
Obama announces that American troop levels will increase by 40,000. Gordon Brown, with ill grace and under pressure from both our American allies and our own generals, announces that British troop levels will increase by 500.
Yes that really does show commitment.
As for allies, European history is a flip flop between Britain leading a mismatched collection of allies against the evil French/Spanish/Russians/Germans (delete as applicable) or plucky Britain fending off a coalition mostly comprising of the rest of Europe (and a few others along the way).
Traditionally, and because we are an island, we have always had a small army but a large navy. (or at least until the end of WW2) so rampaging around Europe was always going to be pretty limited unless we had allies.
In the days of Empire we could draw upon the not inconsiderable skills and numbers of dominion troops but these were seldom seen in Europe until WW1 and WW2. But these weren't exactly allies, more like loyal subjects and willing to step up for king and country.
Quite a bit different because the thing about allies is unless they have a vested interest they seldom want to become allies. You can order them about once they are allies (but they won't be happy) but you can't order them to be allies.